St. Helena Is. (St Helena - Ascension and Tristan Da Cunha) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 16° Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 17° Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 17° Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;
Overcast.
Sunrise:
Sunset:
VH UV
No pollution data.
No pollen data.
7 day forecast for St. Helena Is.
Today (2 August 2025)
| Time |
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
| Wind direction and speed |
SE
7
|
ESE
7
|
ESE
7
|
ESE
6
|
E
6
|
E
5
|
ESE
5
|
ESE
5
|
ESE
5
|
E
5
|
E
5
|
ESE
4
|
SE
4
|
| Wind gust (mph) |
12
|
12
|
11
|
10
|
10
|
10
|
9
|
9
|
10
|
9
|
9
|
9
|
9
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
72%
|
72%
|
72%
|
71%
|
70%
|
69%
|
68%
|
68%
|
68%
|
68%
|
68%
|
68%
|
69%
|
| UV | 4 | 8 | 6 | 5 | 3 | 1 | 1 | 1 | - | - | - | - | - |
Sunday (3 August 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
 |
|
|
 |
|
|
|
|
|
|
|
 |
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
| Feels like temperature (°C) |
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
| Wind direction and speed (mph) |
SSE
4
|
SSE
5
|
SSE
5
|
SSE
6
|
SSE
5
|
SSE
6
|
SSE
6
|
SSE
7
|
SSE
7
|
SE
8
|
SE
8
|
ESE
7
|
SE
7
|
SE
7
|
SE
7
|
SE
7
|
SE
7
|
SE
8
|
SE
8
|
SE
9
|
SE
10
|
SE
10
|
SE
11
|
SE
12
|
| Wind gust (mph) |
9
|
9
|
10
|
10
|
10
|
10
|
12
|
12
|
12
|
11
|
12
|
11
|
11
|
11
|
11
|
11
|
11
|
12
|
14
|
14
|
15
|
16
|
16
|
17
|
| Visibility (description) |
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
69%
|
69%
|
70%
|
71%
|
70%
|
70%
|
71%
|
71%
|
69%
|
71%
|
70%
|
71%
|
69%
|
69%
|
68%
|
68%
|
67%
|
67%
|
67%
|
67%
|
67%
|
67%
|
69%
|
71%
|
| UV | - | - | - | - | - | - | 1 | 1 | 2 | 4 | 6 | 8 | 9 | 8 | 6 | 4 | 2 | 1 | 1 | - | - | - | - | - |
Monday (4 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
 |
 |
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
| Feels like temperature (°C) |
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
| Wind direction and speed (mph) |
SE
13
|
SE
15
|
SE
16
|
ESE
17
|
ESE
16
|
SE
17
|
SE
20
|
SE
23
|
| Wind gust (mph) |
21
|
22
|
23
|
23
|
23
|
26
|
31
|
34
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
| Humidity |
73%
|
74%
|
76%
|
79%
|
81%
|
82%
|
84%
|
83%
|
| UV | - | - | 1 | 4 | 9 | 4 | 1 | - |
Tuesday (5 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
| Wind direction and speed (mph) |
SE
25
|
SE
25
|
ESE
24
|
ESE
24
|
ESE
23
|
ESE
22
|
ESE
22
|
ESE
22
|
| Wind gust (mph) |
34
|
35
|
34
|
33
|
32
|
31
|
31
|
31
|
| Visibility (description) |
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
79%
|
75%
|
74%
|
72%
|
71%
|
71%
|
72%
|
| UV | - | - | 1 | 4 | 9 | 4 | 1 | - |
Wednesday (6 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
10%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
| Wind direction and speed (mph) |
ESE
22
|
ESE
22
|
ESE
22
|
ESE
22
|
ESE
21
|
ESE
20
|
ESE
19
|
ESE
20
|
| Wind gust (mph) |
32
|
31
|
30
|
30
|
29
|
27
|
28
|
28
|
| Visibility (description) |
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
72%
|
75%
|
75%
|
76%
|
76%
|
75%
|
75%
|
75%
|
| UV | - | - | 1 | 3 | 8 | 4 | 1 | - |
Thursday (7 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
| Feels like temperature (°C) |
13°
|
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
| Wind direction and speed (mph) |
ESE
19
|
ESE
19
|
ESE
19
|
ESE
19
|
ESE
18
|
ESE
16
|
ESE
16
|
SE
17
|
| Wind gust (mph) |
27
|
27
|
27
|
26
|
25
|
23
|
23
|
24
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
76%
|
76%
|
77%
|
75%
|
75%
|
75%
|
75%
|
| UV | - | - | 1 | 2 | 7 | 4 | 1 | - |
Friday (8 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
| Feels like temperature (°C) |
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
| Wind direction and speed (mph) |
SE
17
|
SE
17
|
SE
17
|
ESE
16
|
SE
15
|
SE
13
|
SE
15
|
SE
16
|
| Wind gust (mph) |
25
|
25
|
24
|
23
|
21
|
22
|
23
|
23
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
76%
|
75%
|
75%
|
75%
|
75%
|
74%
|
75%
|
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
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Forecast
Forecast for 11:00 (UTC), Sat
Updated 07:25 (UTC+1) on Sat 2 Aug 2025
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